In most cases, bronchitis does not have a significant impact on life expectancy, but it may have an impact on life expectancy if it is not treated in a timely manner, with secondary exacerbations and complications. Bronchitis is a common disease of the respiratory system, acute onset of the disease, if timely medical treatment, appropriate treatment, usually a better prognosis, generally have no major impact on life expectancy. If the disease develops into chronic bronchitis, some patients may suffer from recurrence and aggravation, and may even suffer from pneumonia, chronic obstructive pulmonary disease (COPD), pulmonary heart disease, and respiratory failure, which may affect their life expectancy in severe cases. In addition, patients with advanced age, immunodeficiency, long duration of illness, combination of multiple underlying diseases, and irregular treatment of bronchitis tend to have more severe conditions, which may cause shorter life expectancy. It is recommended that patients seek timely consultation and standardized treatment.